An image file can be next to a markdown file
A CSS file can customize the media item display
CSS files might affect the whole thing, fun, why force targeting the item when all of this is optional
Asset folders can be "shipped" (you get the whole effect when you copy FolderName.lipupini)
Subfolders can have a PHP controller file, Request.php, that determines the output of the media item
Grouped subfolders are named with a .lipupini extension, for example FolderName.lipupini
Lipupini is not for the general public to do anything
Allowing custom CSS and arbitrary editing would eventually break it, so curation is important
Needs to be a flag in config about whether or not to check modified date on files to refresh cache, defaults to true